| Watertown Town to Mattoon (Illinois) | 917.42 mi (1,476.45 km) |
| Watertown Town to Mauldin (South Carolina) | 796.27 mi (1,281.47 km) |
| Watertown Town to Maumee (Ohio) | 643.22 mi (1,035.16 km) |
| Watertown Town to Maumelle (Arkansas) | 1,253.51 mi (2,017.32 km) |
| Watertown Town to Mayagüez (Puerto Rico) | 1,686.73 mi (2,714.53 km) |
| Watertown Town to Mayfield Heights (Ohio) | 531.05 mi (854.64 km) |
| Watertown Town to Mays Chapel (Maryland) | 350.41 mi (563.92 km) |
| Watertown Town to Maywood (California) | 2,583.94 mi (4,158.45 km) |
| Watertown Town to Maywood (Illinois) | 853.40 mi (1,373.41 km) |
| Watertown Town to McAlester (Oklahoma) | 1,417.13 mi (2,280.64 km) |
| Watertown Town to McAllen (Texas) | 1,891.90 mi (3,044.72 km) |
| Watertown Town to McCalla (Alabama) | 1,065.19 mi (1,714.26 km) |
| Watertown Town to McComb (Mississippi) | 1,310.22 mi (2,108.59 km) |
| Watertown Town to McDonough (Georgia) | 936.62 mi (1,507.34 km) |
| Watertown Town to McFarland (California) | 2,586.00 mi (4,161.76 km) |
